From 905c14a8887059b82c1f1eb71401276807fddf74 Mon Sep 17 00:00:00 2001
From: brutzman <brutzman@nps.edu>
Date: Mon, 20 Dec 2021 22:05:05 -0800
Subject: [PATCH] avoid exception by not joining (closing) thread if already
null
---
.../moves/dis7/utilities/DisThreadedNetworkInterface.java | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java b/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
index eb82107eda..19ceeae77f 100644
--- a/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
+++ b/src/edu/nps/moves/dis7/utilities/DisThreadedNetworkInterface.java
@@ -537,8 +537,10 @@ public class DisThreadedNetworkInterface
try
{
- senderThread.join(4000); // wait for thread to die, msec max duration
- receiverThread.join(4000); // wait for thread to die, msec max duration
+ if (senderThread != null)
+ senderThread.join(4000); // wait for thread to die, msec max duration
+ if (receiverThread != null)
+ receiverThread.join(4000); // wait for thread to die, msec max duration
senderThread = null; // make sure
receiverThread = null; // make sure
}
--
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